After spearheading an epic, 18-hour documentary on the Vietnam War, acclaimed filmmaker Ken Burns has turned to more personal subject matter — one that knows him very intimately, too.

Burns tackles the famed Mayo Clinic in his next film, exploring the history of the innovative Rochester, Minnesota-based hospital that has been dubbed “The Miracle in a Cornfield.” It has treated luminaries such as the Dalai Lama — and Burns.

The first time Burns went, he was immediately impressed by the level and detail of his medical care, like the patient was at the center, not the doctor.

“I began to get curious about why this was so different from any other health care experience I’d had,” Burns said.

The result is the two-hour documentary “The Mayo Clinic: Faith, Hope, Science,” which starts with the hospital’s birth during a tornado in 1883 and ends with the modern-day Mayo, state-of-the-art facilities over several campuses that treat up to 14,000 patients in 24 hours.